Biology past questions: NECO SSCE 2005

44 objective questions, with answers. Free to read and practise.

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44 questions, one at a time, marked as you go or at the end. No account needed.

1.
A waterlogged habitat with low light penetration and very low quantity of dissolved oxygen best describes a/an habitat
1. A.estuarine
2. B.marine
3. C.sahel savanna
4. D.swampy
5. E.tropical rainforest
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Answer: D swampy
2.
All these statements are correct about a vein EXCEPT that it
1. A.carries blood to the heart
2. B.contains blood at low pressure
3. C.has no valve
4. D.possesses fairly thick walls
5. E.usually carries deoxygenated blood
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Answer: C has no valve
3.
An example of a carnivorous plant is
1. A.cassytha
2. B.lichen
3. C.mucor
4. D.mushroom
5. E.sundew
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Answer: E sundew
4.
An example of a natural source of light energy is
1. A.electricity
2. B.food
3. C.heat
4. D.petrol
5. E.sun
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Answer: E sun
5.
An organism with identical allelic genes is described as
1. A.dihybrid
2. B.heterozygous
3. C.homozygous
4. D.monohybrid
5. E.recessive
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Answer: C homozygous
6.
Autotrophs include all the following EXCEPT
1. A.chemosynthetic bacteria
2. B.diatoms
3. C.green plants
4. D.phytoplankton
5. E.zooplankton
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Answer: E zooplankton
7.
Birds excrete nitrogenous wastes in form of
1. A.ammonia
2. B.sweat
3. C.urea
4. D.uric acid
5. E.urine
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Answer: D uric acid
8.
Blood carrying digested food from the small intestine flows into the liver via the
1. A.hepatic portal vein
2. B.hepatic vein
3. C.hepatic artery
4. D.mesenteric artery
5. E.renal vein
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Answer: A hepatic portal vein
9.
Deficiency of calcium in a child's diet causes
1. A.cretinism
2. B.goiter
3. C.kwashiorkor
4. D.rickets
5. E.scurvy
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Answer: D rickets
10.
Dry, horny scales in reptiles help them to
1. A.carryout gaseous exchange
2. B.escape from predator
3. C.facilitate movement
4. D.look for mating partners
5. E.prevent water loss
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Answer: E prevent water loss
11.
In a test for reducing sugar, the food substance is usually warmed with
1. A.Benedict's solution
2. B.Millon's reagent
3. C.Sodium hydroxide
4. D.Sudan III
5. E.1% copper II sulphate solution
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Answer: A Benedict's solution
12.
In which region of the body is the diagram illustrated found?
1. A.Abdominal
2. B.Chest
3. C.Neck
4. D.Tail
5. E.Waist
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Answer: C Neck
13.
ln mammals, fertilization takes place in the
1. A.ovary
2. B.oviduct
3. C.uterus
4. D.vagina
5. E.vulva
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Answer: B oviduct
14.
ln the process of succession, a climax community is established when
1. A.a stable community is achieved
2. B.the colonizers accommodate the new corners
3. C.the colonizers are wiped out
4. D.the first inhabitants settle down
5. E.the new corners dominate the original inhabitants
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Answer: A a stable community is achieved
15.
Poor growth and yellowing of leaves in plants is due to deficiency of
1. A.boron
2. B.calcium
3. C.copper
4. D.iron
5. E.phosphorus
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Answer: D iron
16.
The association between a tapeworm and an infected mammal illustrates
1. A.commensalism
2. B.parasitism
3. C.predation
4. D.saprophytism
5. E.symbiosis
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Answer: B parasitism
17.
The following are ways of caring for the mammalian skin EXCEPT
1. A.eating balanced diet
2. B.exposing the skin to adequate sunlight
3. C.using skin toning creams
4. D.using moisturising creams to prevent drying
5. E.washing the skin with clean water and soap
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Answer: C using skin toning creams
18.
The following can increase crop production EXCEPT
1. A.erosion control
2. B.fertilizer application
3. C.mechanization
4. D.monocropping
5. E.pest control
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Answer: D monocropping
19.
The following parts of the ear are involved in hearing EXCEPT
1. A.auditory meatus
2. B.cochlea
3. C.eardrum
4. D.eustachian tube
5. E.ossicles
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Answer: D eustachian tube
20.
The gland that secretes the hormone glucagon is ... gland
1. A.adrenal
2. B.endocrine
3. C.pancreas
4. D.pituitary
5. E.thyroid
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Answer: C pancreas
21.
The medium of transportation in higher plants is
1. A.cell sap
2. B.cytoplasm fluid
3. C.phloem
4. D.water
5. E.xylem
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Answer: A cell sap
22.
The number of chromosomes in a gamete is represented by
1. A.n
2. B.2n
3. C.4n
4. D.23n
5. E.46n
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Answer: A n
23.
The practice of growing more than one type of crop on the same plot of land is called
1. A.continuous cropping
2. B.crop rotation
3. C.mixed cropping
4. D.mixed farming
5. E.subsistence farming
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Answer: C mixed cropping
24.
The process which reduces the nitrogen content of the soil is
1. A.ammonification
2. B.denitrification
3. C.nitrogen fixation
4. D.nitrification
5. E.putrefaction
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Answer: B denitrification
25.
The speed of wind can be measured with an instrument called
1. A.anemometer
2. B.barometer
3. C.hygrometer
4. D.photometer
5. E.thermometer
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Answer: A anemometer
26.
The vitreous humour in the human eye assists in ...... of objects
1. A.contraction
2. B.conversion
3. C.reflection
4. D.refraction
5. E.retention
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Answer: D refraction
27.
Tsetse-fly is a vector of a disease known as
1. A.cholera
2. B.dysentery
3. C.elephantiasis
4. D.malaria
5. E.trypanosomiasis
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Answer: E trypanosomiasis
28.
What type of fruit is pineapple?
1. A.Aggregate
2. B.Capsule
3. C.Complex
4. D.Multiple
5. E.Simple
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Answer: D Multiple
29.
Which of the following does NOT influence plant growth?
1. A.Light
2. B.Nutrients
3. C.Temperature
4. D.Vitamins
5. E.Water
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Answer: D Vitamins
30.
Which of the following does NOT occur during photosynthesis?
1. A.Carbon dioxide is evolved
2. B.Energy from the sun is utilized
3. C.Glucose is synthesized
4. D.Oxygen is given off
5. E.Split of water
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Answer: A Carbon dioxide is evolved
31.
Which of the following enzymes requires acidic medium to function?
1. A.Amylase
2. B.Erepsin
3. C.Maltose
4. D.Pepsin
5. E.Ptyalin
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Answer: D Pepsin
32.
Which of the following fruits is an example of a caryopsis?
1. A.Cashew nut
2. B.Cornbretum
3. C.Maize
4. D.Orange
5. E.Tridax
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Answer: C Maize
33.
Which of the following is a nitrifying bacterium?
1. A.Azotobacter
2. B.Clostridium
3. C.Nitrobacter
4. D.Rhizobium
5. E.Staphylococcus
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Answer: C Nitrobacter
34.
Which of the following is NOT a function of placenta in mammals?
1. A.absorption of food
2. B.gaseous exchange
3. C.removal of wastes
4. D.secretion of hormones
5. E.secretion of enzymes
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Answer: A absorption of food
35.
Which of the following is NOT a type of exoskeleton?
1. A.Cartilage
2. B.Chitin
3. C.Hoot
4. D.Nail
5. E.Shell
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Answer: A Cartilage
36.
Which of the following is NOT a type of supporting tissue in plants?
1. A.Cambium
2. B.Collenchyma
3. C.Parenchyma
4. D.Sclerenchyma
5. E.Xylem
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Answer: A Cambium
37.
Which of the following is NOT an evidence of organic evolution?
1. A.Comparative anatomy
2. B.Embryology
3. C.Fossil records
4. D.Homologous features
5. E.Spontaneous generation
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Answer: E Spontaneous generation
38.
Which of the following organisms maintains a fairly constant body temperature?
1. A.Chicken
2. B.Fish
3. C.Lizard
4. D.Toad
5. E.Snake
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Answer: A Chicken
39.
Which of the following processes removes carbon (IV) oxide from the atmosphere?
1. A.Combustion
2. B.Excretion
3. C.Photosynthesis
4. D.Respiration
5. E.Transpiration
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Answer: C Photosynthesis
40.
Which of these is a direct photosynthetic product?
1. A.fats
2. B.glucose
3. C.latex
4. D.protein
5. E.starch
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Answer: B glucose
41.
Which of these is NOT a structural adaptation of desert plants for water conservation?
1. A.Broad leaves with many stomata
2. B.Leaves reduced into spines
3. C.Scale leaves
4. D.Stems and leaves with thick cuticle
5. E.Sunken stomata
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Answer: A Broad leaves with many stomata
42.
Which of these is NOT an example of heterotrophic mode of nutrition?
1. A.Holozoic
2. B.Holophytic
3. C.Parasitic
4. D.Saprophytic
5. E.Symbiotic
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Answer: B Holophytic
43.
Which of these nitrogenous bases is NOT a part of RNA?
1. A.Adenine
2. B.Cytosine
3. C.Guanine
4. D.Thymine
5. E.Uracil
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Answer: D Thymine
44.
Which of these statements best defines pyramid of energy?
1. A.energy flow from one tropic level to another
2. B.energy flow from one habitat to another
3. C.the amount of energy in a given area
4. D.the loss of energy from one organism to another
5. E.the rate of energy flow in an area
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Answer: A energy flow from one tropic level to another

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